Yujing Zhao

Terminal equipment special for online invoice verification and verification method thereof

Novel digital electronic detonator initiator and control method thereof

Control chip of digital electronic detonator

Digital electronic detonator blasting system and control method thereof

Digital electronic detonator explosion system

Novel digital electronic detonator supervisory system and supervisory method thereof

Digital electronic detonator delay time measurer adopting impact wave technology

Digital device for detonating electronic detonator, which serves functions of GPRS communication and location

Novel digital electronic detonator initiator

Digital electronic detonator priming device with code division multiple access (CDMA) communication and positioning function